RESULT

Test 1. Pump Speed = 50%

RPM = 1400

          = 146.61rad/s

No.	Water height, h(mm)	Inlet Pressure, P(Psi)	Discharge Pressure, P(Psi) x 103	Torque, T(N.m)	Capacity, Q x 10-3(m3/s)	Pump head , hp (m)	Brake Horsepower Wshaft (bhp)	Power WHP Watt,	Pump overall efficiency, η (%)
1	0	0	55.17	0.5	0	5.62	73.31	0	0
2	0.053	519.93	48.28	0.9	0.92	4.87	131.94	43.95	33.31
3	0.060	588.60	41.38	1.0	1.25	4.16	146.61	51.01	34.80
4	0.064	-627.84	34.48	1.1	1.47	3.58	161.27	51.03	32.10
5	0.067	-657.27	27.59	1.1	1.67	2.88	161.27	47.18	29.26
6	0.069	-676.89	20.69	1.2	1.76	2.18	175.93	37.64	21.40
7	0.071	-696.51	13.80	1.2	1.92	1.48	175.93	27.88	15.85

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

                                                                                                                                                                                          

 

 

 

Test 2. Pump Speed = 75%

RPM = 2150

         = 225.15 rad/s

No.	Water height, h(mm)	Inlet Pressure, P(Psi)	Discharge Pressure, P(Psi) x 103	Torque, T(N.m)	Capacity, Q x 10-3(m3/s)	Pump head, hp (m)	Brake Horsepower Wshaft (bhp)	Power WHP Watt,	Pump overall efficiency, η (%)
1	0	0	126.41	0.90	0	12.89	202.64	0	0
2	0.057	0	112.62	1.80	1.10	11.48	405.27	123.88	30.57
3	0.067	-657.27	98.62	2.00	1.63	10.12	450.30	161.82	35.94
4	0.073	-716.13	84.82	2.20	2.05	8.72	495.33	175.36	35.40
5	0.076	-745.56	71.03	2.35	2.25	7.32	529.10	161.57	30.54
6	0.079	-774.99	57.24	2.45	2.48	5.91	551.62	143.78	26.07
7	0.080	-784.80	43.45	2.50	2.58	4.51	562.88	114.15	20.28
8	0.081	-794.61	29.66	2.50	2.62	3.10	562.88	79.68	14.16

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Test 3. Pump Speed = 90%

RPM = 2600

         = 272.27 rad/s

No.	Water height, h(mm)	Inlet Pressure, P(Psi))	Discharge Pressure, P(Psi) x 103	Torque, T(N.m)	Capacity, Q x 10-3(m3/s)	Pump head, hp (m)	Brake Horsepower Wshaft (bhp)	Power WHP Watt,	Pump overall efficiency, η (%)
1	0	0	186.21	1.40	0	18.98	381.18	0	0
2	0.068	-667.08	165.52	2.70	1.72	16.94	735.13	285.83	38.89
3	0.074	-725.94	144.83	3.10	2.12	14.84	844.04	308.63	36.57
4	0.078	-765.18	124.14	3.20	2.42	12.73	871.26	302.21	34.69
5	0.079	-774.99	103.45	3.30	2.48	10.62	898.50	258.37	28.80
6	0.083	-814.23	82.76	3.40	2.80	8.52	925.72	234.03	25.30
7	0.083	-814.23	62.07	3.30	2.80	6.41	898.50	176.07	19.60
8	0.082	-804.42	41.38	3.30	2.72	4.30	898.50	114.74	12.77
9	0.081	-794.61	20.69	3.40	2.65	2.19	925.50	56.93	6.15